FreeTender
Accepting bidstenderNew Zealand

Cromwell Geobag Removal and Pond Desludging

Issued by New Zealand Government · via GETS — New Zealand Government Tenders

Verify & apply on the official portal →
Published
31 Aug 2026
Closes
23 Sept 2026, 02:00 UTC
Reference
34819845
Location
New Zealand
Sector
Water & Environment

Details

RFx ID: 34819845 Organisation: Central Otago District Council Open date: Monday, 31 August 2026 3:00 PM +12:00 Close date: Wednesday, 23 September 2026 2:00 PM +12:00 Categories: 47100000 - Water and wastewater treatment supply and disposal 83101500 - Water and sewer utilities Region: Otago Overview: The Central Otago District Council is inviting proposals from experienced and qualified contractors for desludging two oxidation ponds at the Cromwell Wastewater Treatment Plant (WWTP). The scope of work covers: • Removal of the existing sludge stored in Geotextile bags (Optional Separable Portion) • Design of a sludge removal methodology, dewatering basin and monitoring programme • Desludging of the two oxidation ponds • Dewatering of the dredged sludge using suitable technology This procurement specifically covers the desludging and dewatering components. Disposal of the dewatered sludge and the new geotextile bag are excluded from the contract works. Desludging is a routine but infrequent maintenance activity essential for maintaining the treatment. The Cromwell ponds have been desludged previously in 2017. Further sludge surveys were conducted in 2026 and confirmed the need for intervention. For more info, see RFP document

Published on GETS, the New Zealand Government Electronic Tenders Service.

Context for bidders

New Zealand Government has 483 open notices on FreeTender. There are 44 open Water & Environment tenders in New Zealand. This one closes in 23 days.

Before you bid on this tender

A quick checklist to help you decide whether to bid and prepare a compliant submission for this water & environment opportunity. Always verify the details on the official source.

  • Confirm the exact closing date and time (and time zone) on the official portal — deadlines are strict and can be revised by a corrigendum.
  • Read the full notice and every attached document, including the scope, specifications and any bill of quantities or terms of reference.
  • Check the eligibility criteria — prior similar experience, annual turnover, certifications and registrations — and make sure you qualify before investing effort.
  • Prepare any earnest-money deposit (EMD) or bid security and the required formats early; missing or wrongly-formatted documents are a common cause of rejection.
  • Note how bids must be submitted (online or physical), in what format, and whether a digital signature or portal registration is required.
  • Watch for corrigenda and clarifications right up to the deadline — requirements and dates can change.
Common bidding mistakes to avoid →Writing a winning proposal

More Water & Environment tenders

All Water & Environment tenders →

FreeTender mirrors this notice for reference. Verify the details and bid on the official portal.

Verify & apply on the official portal →